title: Antigenic characteristics of the stable protoplast type L-form of Escherichia coli W 1655 F+.
mesh_terms: D000818:Animals; D000942:Antigens, Bacterial / Q000032:analysis*; D004926:Escherichia coli / Q000276:immunology*; D007114:Immunization / Q000379:methods; D005779:Immunodiffusion; D007122:Immunoelectrophoresis; D007740:L Forms / Q000276:immunology*; D011233:Precipitin Tests; D011523:Protoplasts / Q000276:immunology*; D011817:Rabbits
chemical_list: D000942:Antigens, Bacterial